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Proposed new classification of juvenile idiopathic inflammatory myopathies
| Clinical Phenotype |
|
|
| Dermatomyositis (JDM) |
| Polymyositis (JPM) |
| Overlap myositis (JCTM) |
| Malignancy-associated myositis |
| Inclusion body myositis |
|
|
| Autoantibody Phenotype |
|
|
| Myositis-specific autoantibodies (MSA) |
| Anti-synthetases (including anti-Jo-1) |
| Anti-signal recognition particle |
| Anti-Mi-2 |
| Anti-p155/140 |
| Anti-MJ |
| Myositis-associated autoantibodies (MAA) |
| MSA/MAA negative |
